challenge.gov
Observed Aug 16, 2026, 17:27 UTC (4d ago). Every field below was attested with an Ed25519 signature at scan time.
challenge.gov is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting challenge.gov under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.
Watch challenge.gov Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Google Workspace
DigiCert
Amazon SES
Google Search ConsoleSteady. No change on record for challenge.gov in the last day; this reading matches the one before it. The steady record is signed like every other reading. Watch it to catch the next move the moment it lands.
DNS records 16
TLS certificates 2
Subdomains 1
1 subdomain hostname observed and signed - the list itself is part of the paid record.
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 receiptthe raw cryptographic proof
- Receipt ID
rcpt_9b80f424b3c5988d- Output Hash
1e42446e21dc4ffaef1d02386cbdcaf37b207e9a54523c869376d7f258d5269b- Signature
ed25519:48d01c075d011ab934459d220749c043e4d36d39e0316105b6f1b22f72cd4254a84b362960898a504a09b2f0a694a2779ca850198ef9edfc92e11ba5f1c67e0b- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast